<template>
  <div>
    <header></header>
    <main></main>
    <nav>{{msg}}</nav>
  </div>

</template>

<script>
export default {
  data(){
    return{
      msg:"hello"
    }
  }
}
</script>

<style lang="css" >
  div{
    color: skyblue;
  }
</style>